Fireball incinerator



L. S. MARTIN FIREBALL INCINERATOR Filed Jan. 29, 1963 April 6, 1965 mm un Lewis S. Martin United States Patent This invention relates to incinerators in general, particularly to smokestachs and vents and specifically to incinerators for farm use, especially to low-priced devices suitable for use by poultrymen for the disposal of dead birds in quantities up to 200 pounds or more.

The prime object of the invention is to provide an incinerator which because of absence of either smoke or odor may be used in almost any environment and yet be of minimum cost not only in initial expense but also in maintenance although using a burner below the grate as usual and a second burner at a critical point close to the due c-r stack which is displaced somewhat from its normal location.

Further objects of the invention relate to specific details set forth in the claims.

ln the drawings:

FIGURE l is an elevation, largely in section, of a twomotor, two-fuel pump incinerator;

FEGURE 2 is an elevation of the preferred form using v a single motor for both burners.

The housing l@ is preferably cylindrical with a lower portion il of a 2 thick lire brick Wall upon which is superposed an upper portion l2 of 11/2 lrebrick thus forming an annular shoulder 14 which supports a domed high-duty cast iron or preferably a stainless steel grate l which may easily be inserted through the open top l@ of the housing. A circular opening 1S receives the usual air duct 2li in which is located a gun-type oil burner of any Underwriters approved type, burning #2 fuel oil, preferably with a burner nozzle having a capacity of about 2/3 of a gallon of oil per hour. Air is supplied by a blower (not shown) driven by the motor 22 which also operates the pump 23 so the fuel is discharged in usual manner. The ash removal door 24 is located just above the cast refractory floor 25.

The open top l5 of the housing is closed by a stainless steel, pan-shaped closure 27 filled with a castable refractoiy 25 and is hinged as at 28 to a stainless steel collar 39 supporting the due 32, located as will be noted close to the margin of the upper portion l2 which has an inside diameter of about 18 and is about 30 from grate to top. Preferably the flue is displaced about 90 from the door 24.

An upper air duct 3S leads into the upper portion l2 of the housing. The fuel pipe 36, motor 3'7 and fuel pump 3S being preferablyidentical with the corresponding elements below except that while the lower flame 39 encircles the charge for complete incineration, the upper burner is shaped to give a ball of ilame itl only slightly larger in diameter than the 6" flue 32, this shape and location insuring that neither odor nor smoke will pass out the flue which latter need be no higher above the housing burner than the outside diameter of the latter. The air ducts are about 4 in diameter and the burner nozzle 43 is located between 2 and 31/2 below the incinerator top and just outside the inside margin of the nre brick. Brackets 4l and 42 support the upper and lower units from the heavy angle iron platform 44.

in the preferred forni shown in FEGURE 2, the upper motor and pump are eliminated and the lower pump 23, housed in a shed-type cabinet 56, discharges fuel to pipe 36 through vertical pipe S7, the air duct 35' being capped as at 58 and is connected to the lower air duct 2li by a vertical air pipe dil between the cabinet Se and the burner housing it? so that the air pressure by the usual blower (not shown) in both air ducts 35' and 2li is the same.

What l claim is:

A poultry incinerator assembly comprising a housing and means for providing a lower flame to encircle the charge to be incinerated and an upper llame at the discharge area to prevent passage of incompletely burned particles; said housinfr including a lower cylindrical wall of lire brick having an opening for entry of fuel and air, an open-topped cylindrical fire brick upper Wall forming with the lower wall an annular ledge, a grate resting upon said ledge, a hinged refractory closure with its free edge extending to the curved margin of the housing to provide access for said charge to be incinerated, a cylindrical iiue at the top of the upper portion of the housing, located with its axis adjacent the hinge and diametrically opposite the free edge of the closure of the open top of the housing; said means including a uid fuel burner nozzle projecting into said opening and arranged to discharge a flame under the full area of the grate, and a second fluid fuel burner nozzle located immediately below the lower surface of said closure and in vertical alinement with the outer edge of both the ilue and the vertical wall of the housing and comprising a means to form a ball of lire immediately below and of a diameter slightly greater than the diameter of the flue, whereby said reball as it ascends completely fills the liuc and insures complete combustion of the charge.

References Cited bythe Examiner UNlTED STATES PATENTS JAMES W. WESTHAVER, Primary Examiner. 

